6 letter words:
borzoi17,
5 letter words:
zorro14,
boric9,
roric7,
4 letter words:
bozo15,
zobo15,
zoic15,
orzo13,
zori13,
crib8,
biro6,
birr6,
boor6,
brio6,
broo6,
coir6,
3 letter words:
biz14,
coz14,
riz12,
zoo12,
cob7,
bio5,
boi5,
boo5,
bor5,
bro5,
brr5,
coo5,
cor5,
obi5,
obo5,
orb5,
orc5,
rib5,
rob5,
roc5,
oor3,
roo3,
2 letter words:
zo11,
bi4,
bo4,
ob4,
io2,
oi2,
oo2,
or2,